kirby



(No Model.)

Y 8 Sheets-Sheet 1. J. KIRBY', Jr. 8a I. KINSEY.

VAPOR sToVE. No. 567,479.

Patented Sept. 8, 1896.

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(No Model.)

3 Sheets-Sheet 2. J. KIRBY, Jr. & I. KINSEY.

VAPOR sToVB.

- No. 567,479.. Patented sept. a. 1896.

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` (No Model.) 3 sheetssheet s.Y

J. KIRBY, Jr. a I. KINS'EY. VAPOR STOVE.

No. 567,479. Patented seppe, 1896. E155. l

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vEmm: @www f UNITED STATES PATENT OFEICEI JOHN KIRBY, JR., AND ISAAC KINSEY, OF DAYTON, OIjIIO, ASSIGNORS TO THEDAYTON MANUFACTURING COMPANY, OF SAME PLACE.

VAPO R- STOVE.

'SPECIFICATION forming part of Letters Patent No. 567,479, dated September 8, 1896.

Application led February 3, 1896. Serial No. 577,914. (No model.)

To all whom, tV 11m/y concern:

Be it known that we, JOHN KIRBY, J r., and

ISAAC KINSEY, citizens of the United States,'

The object of our invention is the produc-` tion of a vapor-stove in which gasolene or other similar fluid may be used as fuel with safety from accident, freedom from smoke, disagreeable odor, and'pulsation of flame, which shall be simple to understand and operate,and which shall be automatic in its action.

lith the above object in view our invention may be said to consist, irst, in combining with a supply-pipe a vapor-converting chamber or retort in communication with the burner, av valve for controlling the flow of vapor to the burner, and valve mechanism so located in relation to the liquid supply andretort as to automatically cut off the supply of liquid at a predetermined level within the retort, said mechanism comprising a valve-seat, a valve, a float, and a flexible connection between the float and valve, whereby the float in its upward movement is adapted to close said valve, but in its downward movement is without effect thereon, the valve in the latter case being held to its seat by the pressure of the liquid behind it, the particular function of this construction being to prevent the accidental opening of the valve through movement of the float occasioned by the jarring of the stove or other similar cause; secondly, in combining with said retort and supply-pipe a reservoir in open communication with the retort and'adapted to hold liquid in suflicient quantity to prevent its boiling while the stove is in operation and the liquid in the retort is being heated to a degree necessary to maintain proper generation of vapor to supply the burner, whereby an even pressure is maintained within the retort and pulsationof the flame at the burner prevented; thirdly, in combining with the retort and the reservoir an ignition-cup adapted to hold a sufficient quantity of liquid to furnish when ignited the requisite initial heat to generate enough vapor within the retort to supply the burner in initial operationthe said ignition-cup having valved communication either with the reservoir director through the retort; fourthly, in combining with said ignition-cup a self-closin g valve which, when held open, allows liquid to flow into the ignition-cup and when released automatically closes and stops the flow, by which means the valve cannot be left open with possible dangerous results; ifthly, in combining with the burner proper a subburner for continuously heating the retortl so as to maintain the generation of vapor therein, the subburner being connected 'laterally to and in communication with the removable burner-cap, thus permitting of its arrangement for use and removal for cleaning in a ready and easy manner; siXthly, in combining with the subburner and with the retort, arranged as described, a stove-grate provided with a deflector located above and near to the subburner, for deilecting the heat from the latter onto the retort, thereby increasing the efficiency of the subburner; seventhly, in providing means for the convenient removal of the iioat and cut-off valve; and, further, in certain details of construction and combinations of parts, which will irst be described in connection with the accompanying drawings, and then pointed out in the claims.

Figure l of the drawings is a perspective view of our improved stove, having two high burners and one low burner, (commonly called two-burner-and-step stove,) with a portion of the lower or step top broken away to show the burner in full. Fig. 2 is a broken perspective view of the burner and its appurtenances, illustrating the retort, the ignition-cup, and the reservoir, the retort and reservoir being partially broken out to show the interior valve mechanism, the position of the valve when the stove is not in operation being shown in full lines, the dotted lines representing the position of the parts when thestove is in operation. i Fig. 3 shows a modification of the retort and cut-oif-/valve mechanism and connections, without the reservoir shown in Fig. 2, the cut-off valve being shown open. Fig. 4 shows another modiication of the retort and cut-off-valve mechanism and connections without the reservoir, the cut-off valve IOO being shown closed and the float below its limit of upward travel. Fig. 5 shows a modification of the self-closing receptacle-valve represented in Fig. 2, in which the port through which the liquidflows to the ignitioncup communicates through the retort with the reservoir. Fig. 6 is a broken perspective view of the burner-cap and a portion of the grate, showing the heat-deflector in its position in relation to the snbflame-burner for heating the retort. Fig. 6 is a central vertical cross-section through the grate and the deflector carried thereby, the burner-head, and a portion of the retort, showing the position of the deliector and the subburner with relation to the retort, the needle-valve being shown in elevation. Fig. 7 is a plan view of the mixing-chamber on the burner-head, the air-and-vapor conduit being shown in position. Fig. 8 is a perspective view of the mixing-chamber. Fig. 9 is a perspective view of the removable cut-off-valve cup and strainer. Fig. 10 is a broken perspective, partially sectional, view of the burner-head, showing it removed from the retort and the valve open.

Referring to the drawings, standards A A', tops A2 A3, and a shelf A5 comprise the framework of the stove. Each of the tops is provided with an opening' A6, in which is secured an ordinary grate A4.

B represents a supply-pipe, which leads from a suitable supply-tank B and communicates with the burners, hereinafter described.

C represents a reservoir, adapted to be screwed or otherwise secured to the lower end of a retort C, the lower portion of thev reservoir being provided with two downwardlyextending .circular flanges C2 C3 and a T-fltting C4, and the upper end of the reservoir is provided with an upwardly-extending annular liange C5, forming with the top of the reservoir an ignition-cup C6 around the retort This ignition-cup C6 is provided with a boss C7, in which is secured the inner end of a hollow arm C8, in the inner end of which is formed a needle-valve opening a, the outer end being provided with a packing-chamber a. Within the arm C8 is mounted a sliding valve-rod C9, the inner end of which is shaped to form a valve to t valve-opening a. A shoulder a2 is formed on the rod C9 to form a stop for a washer d3, against which one end of a coilspring a4 bears, the other end of the spring bearing against one end of a yoke D, which is secured to the arm C8. To the outer end of the rod C9 is secured a handle a5, by means of which the valve-rod is operated. Packing is placed in the packing-chamber a of arm C8 to prevent leakage, the packing being held in place by an ordinary gland d8. On opening the valve liquid flows into the ignition-cup Ci through channel a6 and port a7, a loop D', secured to the outer end of yoke D, limiting the outward movement of valve-rod C, all as clearly shown in Fig. 2. n

In Fig. 5 we have shown a modification of the ignition-cup and valve in which the liquid is admitted to the ignition-cup directly from the retort through the port a7 and channel a, the boss C7 being shown as extending from the annular flange C5 entirely across the ignition-cup and entering the retort.

The iiange C2 of reservoir C is interiorly screw-threaded to receive a screw-plug Z), having a valve-opening b and oil-passages b2 b3. A valve b4, having a stem b5, operates to close said valve-opening, the stem moving vertically in the oil-passage b2 and having connected to its upper end one end of a fleXible connection b, the other end of which is connected to the lower end of an ordinary float E, which operates within the retort CC The annular iiange C3 of reservoir C is interiorlyscrew-threaded to receive a valve-cup E/, the bottom of which is provided with an extension E', bored and threaded to receive a pointed screw-plug E3, by means of which the cup E may be emptied when desired, as on unscrewin g the plug E3 the liquid will iiow out through a channel E4, formed in the extension E2. A strainer E5 is secured in cup E' and provided with a central opening E6, adapted to iit snugly around the flange C2, as shown.

It is well known that gasolene and other similar oils contain more or less water and other foreign substances, and that such foreign substances, when permitted to reach the point of vaporization, cause imperfect combustion and otherwise interfere with the perfect working of the burner, and it is therefore essential that provision be made to prevent such substances reaching the retort or even coming into contact with the cut-off valve. From the above description it will be seen that all liquid entering the retort must first pass through the strainer E5; and that, further, after passing through the said strainer all substances heavier than the liquid fuel will settle to the bottom of cup E', from which they can be readily drawn off', and also that the cup can be unscrewed to permit the strainer to be cleaned. After the cup has been removed the valve-plug h, together with the valve and its connections, can be unscrewed and removed without disturbing any other part of the stove whenever it is found necessary to clean or replace these parts. The T-fitting Q4 is provided with a bored eX- tension F,interiorly screw-threaded to receive a pointed plug F, comprising a valve which on being closed is adapted to shut off the flow of liquid into cup E, the liquid, when the valve is open, entering the reservoir just above cup E' through a channel 57, formed in the T-itting G1. By the above construction it will be seen that liquid flows from the elevated tank B' through supply-pipe B and channel 57 into that portion of reservoir C between flanges C2 and C3, then downward through strainer E5 into cup E', then upward past valve b4 and through oil-passages 292 Z13 into the reservoir C, and gradually rises in the retort.

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-In the modification shownvin Fig. 3 the reservoir C is omitted and the retort C' is secured to a connection G, which is substantially the same in construction as the lower part of reservoir C. This modification will be understood without further description.

In the modification shown in Fig. 4 the reservoir C is also omitted and the lower end of the retort secured in an interiorly screwthreaded collar 15. Inside the retort there is secured a ring 16, adapted to receive a valveplug b, having a chamber 17 therein, the strainer E5 in this case being within said chamber. A removable cup 18 is screwed into the lower end of ring 15, into which cup liquid fuel passes from the supply-pipe in the same manner as hereinbefore described. It will be noticed in this modification the cut-offvalve s shown closed, while the iioat is represented as below its highest limit of travel. This is so represented to show that the float may be disturbed by rolling the stove about the floor, or by other Asimilar jarring, without disturbing the valve, which when vapor is not being generated will be held closed by the pressure of liquid behind it, such pressure not being sufficient to close the valve without the aid of the iioat; but when. the oil in the retort is heated and vapor is being generated, the pressure of the vapor in the retort will force the liquid therein back, and so open the valve, which will remain open until the pressure diminishes, when the liquid will again rise in the retort to its predetermined level, which causes the float to rise, and so close the cut-off valve. It is well known that various means have been employed to prevent the burners of gasolene or vapor stoves from puffing and going out, which is caused by the liquid in the retort becoming heated to the boiling-point by heat defiected to the retort fromI the burner, which boiling causes an uneven pressure of the vapor and consequent puffing and extin* guishment of the flame at the burner. This evil we avoid by the use of the reservoir C, in which liquid fuel is contained in such quantity as to prevent the boiling before mentioned.

H represents a burner-head screwed or otherwise secured to the upper end of the retort C', and provided with a laterally-extending arm H', carrying and guiding a valve-stem H2, and a packing-chamber H3, in which packing (not shown) is secured by a gland H4. The outer end of the valve-stem H2 is provided with a hand-wheel H8, the inner end being tapered to form a needle-valve H6, the burner-head being provided with a valve-seat and valveopening H9. A mixing-chamber I, open at top and provided with a conduit I2, is attached to the burner-head by a plate I3, which is provided with a casing H7 to receive an arm K, as shown, the function of the miXing-chamber being to mix the ingoing vapor with a proper proportion of air to form perfect com bustion, the air and vapor both entering the chamber through the conduit I2. At the top of chamber I there is formed a seat I4 to receive a burner-cap J, closed at the top and open at the bottom to communicate with the mixing-chamber, the cap being provided with a series of openings h, through which the mixed air and vapor pass to be consumed in the usual manner. A laterally-extending hollow arm K, forming a subburner, is secured to the burner-cap J, the outer end being closed and the inner end communicating with the interior of the burner-cap. A longitudinal opening K' is cut through the under side of arm K, through which opening a portion of the mixed air and vapor escapes, which, when ignited, creates a subameand plays against the topfof the burner-head, a portion of plate I3 being cut away, as at I5, to permit this action. The function of this subi-lame is to communicate to the retort sufficient heat to maintain constant vapor-generation, and also to Vact as a guard against the extinguishment of the main flame, in that should the main flame for any reason become extinguished the subflame would immediately ig nite it again, and vice versa, so that in order for a draft or other cause to put out the iiame it is necessary to extinguish both flames at the same time, which will rarely, if ever, occur. In order to secure the full benefit of the heat from the subfiame, a deiiector L is secured to the grate A4 directly above and near to the subburner K, which latter overlies the upper' end of the retort. By this construction the heat generated at the subburner is deflected onto the retort for the purpose of maintaining generation therein, therebyy accomplishing the desired result with less fuel than would be required if the deflector Were not employed, and in a simple and effective manner. s

Having thus described our invention, What we claim as new, and desire to secure by Letters Patent, is- I 1. In a vapor-stove, a burner, a retort connected therewith, a cut-off valve and a seat therefor below the float, a liquid supply beneath the cut-off valve, and a flexible connection between the cut-off valve and float, whereby the valve when seated may so remain regardless of the position of the iioat until unseated by the pressure of vapor generated in the retort. y

2. In a vapor-stove, a burner, a retort, an

oil-reservoir of greater diameter than the rey tort, said retort being connected with the reservoir and burner, a iioat located in the retort, a cutoff valve and a seat therefor below the retort, a liquid supply beneath the cut-off valve, and a suitable connection between the cut-off valve and float, whereby the oil in the retort is prevented from becoming overheated by the volume of oil in the reservoir.

8. In a vapor-stove, a burner, a retort, Aan oil-reservoir of greater diameter than the retort, the retort connecting the burner and reservoir, an ignition-cup'formed by the top IOO IIO

and a continuation of the sides of the reservoir, and valve mechanism carried by the ignition-cup and establishing communication between the latter an d the reservoir, whereby on opening the valve oil will iow into said cup, to be there ignited for initially heating the retort.

4. In a vapor-stove, a burner, a retort, an oil-reservoir of greater diameter than the retort, the retort connecting the burner and reservoir, an ignition-cup formed by the top and a continuation of the sides of the reservoir, said ignition-cup being in communication with the reservoir through a port, and a self-closing valve carried by the ignition-cup normally closing said port, whereby danger of accident from the port being inadvertently left open is avoided.

5. In a vapor-stove, a retort, a loat located in the retort, a valve-plug support below the iioat having'avvertical opening of greater diameter than the ioat, a valve-plug adapted to be removably secured in the opening in said support, a cut-off valve adapted to seat in the valve-plug, and a suitable connection between the cut-off valve and float, whereby on removing the valve-plug the iioat and cutoff valve may also be removed.

G. In avapor-stove, a retort, a float located in the retort, a valve-plug support below the iioat having a vertical opening of greater diameter than the float, a valve-plug adapted to be removably secured in the opening in the support, a cut-off valve adapted to seat in the valve-plug, a suitable connection between the cut-off valve and float, a cut-off-valve cup removably secured below the retort, a liquidsupply pipe for conveying oil to said cup, and a strainer between said pipe and valve-plug through which the oil passes before reaching the cut-off valve.

'7. In avapor-stove, a retort, a float located in the retort, an oil-reservoir of greater diameter than the retort secured below the latter, a valve-plug of greater diameter than the float removably secured in the lower end of the reservoir, a cut-off valve adapted to seat in the valve-plug, a suitable connection between the cut-off valve and float, a ciit-off-valve cup removably secured to the lower end of the reservoir, a liquid-supply pipe for conveying oil to said cup, and a strainer between said pipe and the valve-plug, as and for the purposes set forth.

S. In a vapor-stove, a retort, a float located in the retort, a valve-plug support below the float having a vertical opening of greater diameter than the float, a valve-plug adapted to be removably secured in the opening in the support, a cut-off valve adapted to seat in the valve-plug, a suitable connection between the cut-oit valve and float, a cut-oif-valve cup removably secured below the retort, means whereby the cup may be drained, a liquid supply pipe for conveying oil to said cup, and a strainer between said pipe and the valve plug, as and for the purposes set forth.

0. In a vapor-stove, a burner-head having a burner proper provided with a removable burner-cap, a subburner consisting of a longitudinally-slotted arm connected laterally to and in communication with the burner-cap, a retort connected with the burner-head beneath the subburner, a valve carried by the burner-head for regulating the flow of vapor from the retort to the burner, and a deflector immediately above the subburner, for the purposes set forth.

Jol-1N KIRBY, JR. IsAAc KINsEY.

lVitnesses:

C. U. RAYMOND, I-I. D. HENDRICK. 

